Mine door



Feb. 25, 1930.

A. J. GURNE Y MINE DOOR 3 $heets-Sheet l Original Filed May 13, 1925 A. J. GURNEY MINE DOOR 3 Sheets-Sheet 2 Jwuentoz Original Filed May 13, 1925 Feb. 25, 1-930.

Feb. 25, 1930. A. J, GURNEY 1,748,448

MINE DOQR Original FiledMay 13, 1925 s sneets-sneet a III , pear during the description.

mine door,

Patented Feb.25,"19s0' -fl. fU NITED' sT-ATEs PATENT eerie;

ALBERT eURNiiY, F cAN'roN, on'r nssIe onro THE AMERIoAN MINE noon-00.,

: V orcANrroN, OHIO, ACORPORATION or 01110 Original application filed. May 13; ieza'seri'ai o, 30,07 Divided and this application filed January 20,

1927. Serial No. 162,388.;

This invention relates to an improved mine .door, being a division of my co-pending application for automatic mine door, filed May 13,1925, SerialNo. 30,078. I

The: invention seeks, among other objects, to provide an improved door structure wherein the door wings employed will be supported and braced in a novel manner.

A furtherobject of the'invention is to provide novelmounting for the wings' U *f-And the invention seeks, as a still further object, to provide a door wherein the wings may'be' rea'dily installedor removed.

'Other objects of the invention not specifically mentioned in the foregoing will apcourse of the following Inthe drawings: Figure 1 1s anvelevatlon of my improved I Figure 2 is a horizontal section on the line 2-2 of Figure 1, looking in the direction in- "dic'ated bythearrows, V

i Figure 3 is a plan view showing a typical bottom hub plate of the wings of the door,

' Figure 4 is a fragmentary elevation showing one of thebottom hub plates,

Figure 5 is a detail sectional view show- "mg aitypicalbottom socket plate, and

Figure 6' is', a detail sectional'viewshowing one of the pintles' of the door wings.

In'c'arr'ying the invention intoeflect, I- employ a door frame including a "sill 10,,side

" posts '11, and a cap 12 rigidly secured together. The frame is, asshown in Figure2,

erected diagonally of the mine track, which track is indicated conventionally at 13, and

at opposite sides of the frame are provided bumpersl l. 'Boltedto the door frame m the 1 angl'es'atthe lower corners thereof are bottom bearing'pla'tes 15 having sockets 16, and bolt- "ed to the frame'in theanglesat the upper corners thereof are top bearing plates 17 hav'-- ing sockets 18 alining with the sockets '16of the bottom plates. Journale'd upon said 1 plates are mating doorwings 19 overlapping at their outer vertical. margins. I

Overlying the inner vertical marginsof the wings 19 at corresponding sides thereof, are longitudinally extending Z-shaped bars 120,

the oppositely directed flanges of which are indicated at 21 and 22, and overlying said margins of the wings at opposite correspond ing sides thereof are longitudinally extending angle bars 23 connected with the bars by rivets or other fastening devices clamping the inner margins of the wings between said bars,

the flange 22 of the bars 20 providing stops for the bars 23. Fixed to the flanges 21 of the bars 20 as well as to the wings are outstandlng vertically spaced brackets 24 and adjustable through the outer ends of said brackets are brace rods 25. At their forward ends, these rods are equipped with claws 26.

Adjustable through corresponding outstand;v ing flanges of the angle bars 23 are brace rods 27 equipped at their forward ends with claws 28, disposed opposite'the claws 26, and extending through the claws and through the Wings 19 are bolts 29 clamping'the claws in' engagement with the wings; The claws will thus rigidly anchor the rods and 27 at their forward ends, and screwed on said rods at their rear ends are'nuts 30 which may be adjusted for tensioning saidrods.

Fixed to the lower ends of the bars 20 and l 23 are lower hub plates '31, one of which is shown in detail in Figures 3 and 4 of the drawings, and fixed to the upper ends of said bars are upper hub plates 32, one of which is shown in Figure 6. These hub plates are identical with the exception that the lower hub plates are provided withlong arms 33 and angularly disposed short arms 34; Formed on the plates are axially disposed hub sockets or sleeves 35; from which extend-as particularly shown in Figure 3, flanges 36 I and 37. Rising from the plates in spaced relation to the ends of the flanges 36 are flanges 381while flanges 39 are provided in spaced relation to l the flanges 37, Flanges 40 are .also provided at right angles to the flanges 39. As best shown in dotted lines in Figure 3, the 1 ends of the Z-shaped bars 20 fit between the flanges 36, 37, 38,39 and 40 of the hub plates while the ends, of the angle bars 23 fit the flanges 36 and 37 of said plates, and extending through'the several fiang'es and through the bars are rivets or other-suitable fastening v devices rigidly connecting the hub plates v with the bars.

Slidable in the sockets of the hub plates 31 and 32, as best seen in Figure 6, are pintles 41 and adjustable through the inner ends of said sockets to-coactwith the pintles are set bolts 42 carrying lock nuts 43. The'sockets are provided with longitudinally extending slots 44andextending treely through said slots are angle shaped keys45screwed into the pintles, the pintles being provided at longitudinally spaced points with threaded sockets 46 to accommodate said keys. Initially, the

keys 45 are engaged in the sockets 46 nearest the outer ends of the pintles, when the set boltsarebackedoutof the sockets 85 so that the ,pintles may shift into said sockets. The wings l9-oif the door may then be freely disposediinpositionwithin the door frame, whenthe keys lofjthe pintles may be; grasped for manually {projecting the pintlesinto the socketsleand 1-8.0fthe bearing plates 15 and 17. Thesetbolts 42 are then adjustedto abut the innerendsof the pintles for maintaining thefpintles projected-and, as will be appreciated, by1properlyadjusting said bolts the v wings may be either elevated or lowered within the .door frame, Finally, the keys 45 are removed from the outermost of the sockets 46 otthe pintles and, as shown in Figure 6,;engaged in the innermost of said sockets tovcoact with the inner end walls of movement 7 the slots44so that should the bolts 42 become loosened ifor any reason, the keys will limit the pintles against retraction. Furthermore, as will .b e;seen, thekeys will lock the pintles against rotation so that the pintles will turn 'c ouplingntlie wings 19 to simultaneously swing in opposite directions. Screwed over the ends .ot said rod are yokes 48 fpivotally connected tothe arms, and these yokes are adjustable upon the rod for varying the efl'ec tive flength thereof, theisl'eeves of the yokes being'p'rovided with ears to receive bolts 49 clamping the yokes 'in adjusted", position.

Fitting l opposite corresponding corners of 4 theposts'll of thecloor frame, at the lower ends of said posts, are angle shaped'brack 'ets 50'fixed-to said posts; ;As shown in Fig ure "5', the lower "ends'of the brackets are rece ived between theposts and the bearing plates '15 "to be secured by the same bolts anchoring said plates, and projecting from the brackets .are spaced arms 51'. Swingingly'mounted eupon vEthebrackets are levers ,52fprovided medially with hubs 53 which are freel-y :recei'ved' zhetween the :arms 51 ot. the

brackets and extending through. said arms and through the hubs are pivot pins 54. As shown in Figure 2, the outer ends of the le'- vers are curved toward the posts 11 while the inner ends of the levers extend at opposite sides of the door and, as brought'out in Figure 1, are ofiset with respect to the outer ends of the levers to lie in a plane with the arms 34 of the lower hub plates "31. I-h'thils connection iris to be'observed, as'shown in Figure 2, that the short arm of the lower h'ub'plate seen at the left in' Figure'Q, stands.

at approximately a right angle to the long arm" of said plate to project at one side'o'f V the door, while the shortarm ofthe lower hub plate seen at theright, extends at a greater angle with respect to the longarmof the latterplate to-project at the opposite side'of the door. Connecting the inner ends o-fthelevers 52 with the free ends ofthearms 34 of said hub plates are links 155. a V r In the closed position of the wings 19, as shown in Figure 2, the inner'ends of the levers 52 stand substantiallyparallel to the 1 .7 will now be Seen, when the 'leversare swung so that the inner endsthereof travel toward arms 34vof'the bottom hub plates 31 and as the wings,the wings will be swungvin opposite directions ,to open position. As the wings arethus swung open, the linksandlevers are swung toward an alined position so 757 that when the wings are full open,ithe links I and levers occupy a relation close to dead center, Thus, a portion of thethrust of'the wings tending to swing closed will be Counteracted by the approximate dead center rela tion of the links and levers sothat the wings may be readily held open while strain upon 7 the operating mechanism connected with the levers willbe relieved. Furthermore, the

speed of the-opening travel ot-the wings will, as will beseen, be gradually reduced as the wings approach the .endof their opening travel so, that banging of the wings against the. bumpers 14 will be prevented. Con-1;. nectedtothe-outer endsofthe levers52 are rods 56-.operable :Eor swinging the leversand opening the door wings, and associated with said lever wings;

are, springs 57 for closingthe Having thusdescribed the invention, what a 1. In a mine door, adoorlwing, aZ-shaped 1 bar overlying-'one side of thewing at the inner vertica'lma-rgin thereoflan angle shaped bar overlyingthe opposite side of the wing at ltsinner; vertical margln, means, connecting the barswith the wing, hubs plates having flanges receiving the ends of said bars there- 7 between and arranged toabut the angularly disposed portions of both-of said bars, means extending through the bars andsaid flanges connecting thejhub plates with the-bars, and I means carried by the hub. plates pivotally mounting the Wing, v

2, In a minedoor, a door wing, a Z-shaped' bar overlying one side of the wing at its inner vertical margin, an angle shaped bar over lying the opposite side of the wingat said 1 5 margin thereof, means connecting the bars 7 with the wing, hub plates fixed to the ends ofsaid bars and provided with means pivotally mounting the Wing, brackets fixed to one of s the angularlydisposed portions of'said Z- 10 shaped bar, brace rods at one side of thewing engaged with said brackets, and brace rods attheopposite side of the wing engaged with I said angle bar. I 1

' 3. In a mine door, a door wing, longitudinal reinforcing bars fixed to opposite sides of the wing at the inner vertical margin thereof, hub plates having flanges snugly receiving the end portions of the bars therebetween, said bars having angularly disposed portions and said flanges being arrangedto abut the angularly disposed portions of both of said bars, means engaged with saidflanges connecting'the hub lates with the bars, and means carried by\ t e hub platespivotally .mounting the wing. a t 4. In a mine door, a door wing, reinforcing I meansforthe wing at theinner vertical mar- I .Qgin thereof at opposite sides of the wing,

" claws engaged with the wing'atone side thereof, brace rods extending between said I claws and through said reinforcing means, 1 claws engaged-with the wing at the opposite side thereof, brackets fixed to said reinforcing means at the latter side of the wing, and

I brace rods extending between the latter claws and said brackets. I a

5. Ina mine door, a door wing, longitudinal'reinforcing means disposed at opposite sides of the wing at the inner vertical mar- 40 gin'thereof, said: reinforcing means having angularly disposed portions,hub plates having upstanding'flanges snugly receiving the ends ofsaid reinforcing meanstherebetween,

said. flanges being arranged to abut the an-,

. lgularlydisposed portions of both of said means, and means carried by said hub plates for swingingly mounting the wing.

In testimony whereof I aflix my signature.

s v ALBERT J. GURNEY. 

